Frequencies for first 10,000 rows of veh_cf2 variable in vehicle dataset :

    RELATED |
   FACTOR 2 |      Freq.     Percent        Cum.
------------+-----------------------------------
          0 |      9,763       97.63       97.63
          1 |          4        0.04       97.67
          2 |         10        0.10       97.77
          3 |          3        0.03       97.80
          4 |          5        0.05       97.85
          6 |          2        0.02       97.87
          9 |          4        0.04       97.91
         13 |          1        0.01       97.92
         14 |          3        0.03       97.95
         16 |          2        0.02       97.97
         18 |          2        0.02       97.99
         31 |          5        0.05       98.04
         32 |          1        0.01       98.05
         34 |          5        0.05       98.10
         99 |        190        1.90      100.00
------------+-----------------------------------
      Total |     10,000      100.00

by Jean Roth , jroth@nber.org , 18 Apr 2016